APA (7th ed.) Citation

Ritter, W. E., & Forsyth, R. A. (1917). Ascidians of the littoral zone of southern California. University of California press.

Chicago Style (17th ed.) Citation

Ritter, William Emerson, and Ruth Agnes Forsyth. Ascidians of the Littoral Zone of Southern California. Berkeley: University of California press, 1917.

MLA (9th ed.) Citation

Ritter, William Emerson, and Ruth Agnes Forsyth. Ascidians of the Littoral Zone of Southern California. University of California press, 1917.